I need implement error page. When I can't found a page I need to go to error page (now Silverstripe do this) and some second I need redirect to home.
Is this possible?How?
The 404 handler just displays the ErrorPage type with an error code of 404, usually called "Page not found".
As with any page you can edit in the CMS, you can add custom meta tags in the Metadata tab. Just put your meta refresh tag in there, save and publish, and the 404 page will have that meta tag inserted.
sorry but is not very clear..can you give me more details?